import { type Task } from "./models.js";
import type { TaskStore } from "./store/base.js";
export declare const DEFAULT_POLL_MS = 100;
export declare const MAX_POLL_MS = 500;
/**
 * Grow the polling interval towards the ceiling.
 *
 * wait() has no idea whether the task takes 50ms or an hour. Starting tight keeps
 * short tasks snappy; growing keeps a long wait from costing a read every 100ms
 * for its whole duration. The +1 keeps truncation from pinning tiny intervals:
 * Math.floor(1 * 1.5) === 1 would otherwise never grow past 1.
 */
export declare function nextPollMs(current: number, maxMs: number): number;
/** Poll get() until terminal or timeout. Returns the terminal Task (any status).
 * Throws TaskTimeout, leaving the task running. `pollMs` is the *first* interval;
 * it backs off towards `maxPollMs`. */
export declare function pollWait(store: TaskStore, taskId: string, { timeoutMs, pollMs, maxPollMs, }: {
    timeoutMs: number;
    pollMs?: number;
    maxPollMs?: number;
}): Promise<Task>;